/*
 * Copyright 2025 NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.navercorp.pinpoint.common.timeseries.window;


@FunctionalInterface
public interface TimeWindowFunction {

    TimeWindowFunction ALL_IN_ONE = (timestamp) -> 0;


    long refineTimestamp(long timestamp);


    static TimeWindowFunction identity() {
        return timestamp -> timestamp;
    }


    static TimeWindowFunction newTimeWindow(boolean timeAggregated) {
        if (timeAggregated) {
            return TimeWindowFunction.ALL_IN_ONE;
        }
        return TimeWindowFunction.identity();
    }
}
